That LCD has a PSB pin, which means that it is probably uses the ST7920 controller chip and can be connected in serial or parallel mode. I have a fairly basic serial mode driver for it at https://github.com/dc42/arduino/tree/master/Libraries/Lcd7920. The pin connections are listed in the sketch. For a more comprehensive library, search for U8glib.

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Thanks. Unfortunately the lables of the display pins are not readable, but from one of your first pictures, I would say, that you did not power up the display.VCC must be connected to power (3.3V or 5V, depending on the specification of the display)GND must be connected to GND of the Arduino.

K and A are reserved for the power of the backlight LEDs. Usually you must not apply power here without resistor.

Can you share the specification for your display?

BTW, it seems the same display as here, correct? http://www.flickr.com/photos/73766535@N00/7810659332

// Pins for serial LCD interface. For speed, we use the SPI interface, which means we need the MOSI and SCLK pins.// Connection of the 7920-based GLCD:// Vss to Gnd// Vdd to +5v// Vo through 10k variable resistor to +5v (not needed if your board has a contrast adjust pot on the back already, like mine does)// RS to +5v// PSB to gnd// RW to Arduino MOSI (see below for pin mapping)// E to Arduino SCLK (see below for pin mapping)// RST to +5v// D0-D7 unconnected// BLK to ground (or collector of NPN transistor if controlling backlight by PWM)// BLA via series resistor (if not included in LCD module) to +5v or other supply

Your display has a contrast pot on it already, so you don't need to connect the Vo pin.

You do need to have reliable soldered connections. If you solder a header pin strip to the display, you can then plug it into a breadboard.

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